GM blowing air in master cylinder problem (1 Viewer)

[martin182]

Hi,
Last time I had small accident... I broke up axle rear... so I changed this, and I changed wheel cylinder, springs, brakes shoe etc. (all rear brakes set)... and I bleeding brakes (rear cylinder wheel) and everythink was great... but when we closed rear vent then... was running blowing air in master cylinder (from FRONT brakes, wtf??) like on this movie....



pedal is working good but something is wrong, and I can't find any solution;/ can you help me?
sorry for my English I know he is like parts from china (do not offend Chinese) and sorry if I chose wrong section.
I have to try find solution abroad (USA, CANADA) because in Poland no one knows this car's, engine's like you... (you have many such cars, american muscle you know... you are masters) I love this car, I love American cars. help me fix my tahoe, please I don't want to sell it

Regards

I have tahoe 1996 5.7L

 

[PAToyota]

Blowing air? The video shows the cylinder pumping fluid - which is what it is supposed to do. You don’t want to pump the pedal with the cap off or it will do just that.

 

[martin182]

yes... but... now I see I have very weak brake.... and pedal is a little spongy but it does not come to an end.... maybe should I bleeding ABS?

 

[PAToyota]

Yes, you’ll have to bleed the entire system after replacing components.